(3GdYdhe GdHMJI aj GdMVGQI GdYQHjI hGdGdSdGejI (B/ s - (3GdOaGY,Ydj YHO Gddg,s (3YejO cdjI GdYdhe HLGeYI GdHJQhd hGdeYGOf(B-(3GdXgQGf,s ((3HjQhJ(B[(3dHfGf(B] : s (3eDSSI GdQSGdI,s, 1981)
(3jJVef agGQS GdGYdGe hGdGeGcf(B.s
(3jJVef GQLGYGJ HHdjhZQGajI(B.s
Keywords: (3GdYdhe(B-s -- (3JGQjNs